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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 07, 2014 09:33 Post subject: Re: Bob's rocks |
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Thanks Pierre!
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Don Lum
Joined: 03 Sep 2012
Posts: 2854
Location: Arkansas
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Posted: May 07, 2014 09:40 Post subject: Re: Bob's rocks |
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Pierre Joubert wrote: | Hi Bob, I really like the aqua combination from Erongo! IMG_6865.jpg |
Same here, Bob. Bi-colored beryl crystals.
Don
_________________ hogwild |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 07, 2014 21:12 Post subject: Bob's rocks - Andradite Huanggangliang |
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Andradite-Grossular garnets to 23 x 23 mm with white blades of Calcite to 17 mm, accented with clear Quartz points to 17 x 5 mm
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Andradite with Calcite and Quartz Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 77 x 59 x 40 mm |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 07, 2014 22:27 Post subject: Bob's rocks - Baryte from Weld Co., Colorado |
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An attractive and 3-dimensional specimen of sky-blue Baryte crystals with minor Calcite accents. Collected July 1989.
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Baryte with Calcite Leeson Pocket, Stoneham area, Weld County, Colorado, USA 56 x 40 x 35 mm |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 07, 2014 22:39 Post subject: Re: Bob's rocks |
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From the east side of the Erongo Mts., between the village of Tubussis and the Amib farm (about 15 km north of the farm). I got this from Chris Johnston before it had been cleaned, and like it this way.
Quartz measures 43 x 25 x 22 mm
Fluorite to 11 mm
Microcline up to 30 x 27 x 24 mm
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Beryl ( var. aquamarine ) with Quartz and Fluorite on Microcline Erongo Mts., Erongo Region, Namibia 119 x 97 x 90 mm |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2029
Location: USA
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Posted: May 07, 2014 23:20 Post subject: Re: Bob's rocks |
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Very nice Baryte and calcite piece.
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 07, 2014 23:34 Post subject: Re: Bob's rocks |
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Thanks Mike!! Thanks also for all the photo tips.
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 08, 2014 20:03 Post subject: Bob's rocks - Sierra de Cruces, Coahuila Mexico |
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Garnet and a Vesuvianite
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Vesuvianite with Grossular Sierra de Cruces, Municipio de Sierra Mojada, Coahuila, Mexico 88 x 86 x 67 mm Vesuvianite to 55 x 32 accented with small (4 mm) dark-grey Grossular crystals, ex. Dr. David Roter collection. |
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Grossular Sierra de Cruces, Municipio de Sierra Mojada, Coahuila, Mexico 64 x 57 x 41 mm Several raspberry Grossular garnets, the largest measuring 22 x 21 mm, are perched on typical matrix. This is large for the locality, and is in good condition. |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 11, 2014 17:09 Post subject: Bob's rocks - Calcite from Huanggangliang |
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Bright light-pink managoan Calcite to 91 x 42 x 18 mm accented with light-smoky Quartz points to 65 x 19 mm. The Quartz are somewhat sceptered as typical with the better crystals from this locality, and a few are included with green, likely Actinolite.
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Calcite ( var. manganoan ) with Quartz Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 168 x 148 x 81 mm |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 11, 2014 17:15 Post subject: Bob's rocks - Fluorite, Scheelite from Huanggangliang |
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Clear Fluorite crystals to 33 x 27 mm and sharp crystals of whitish-grey Scheelite to 31 x 19 mm are nestled in and on blades of silvery Lollingite to 33 x 11 mm, all on a matrix of lustrous black Magnetite.
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Fluorite with Scheelite and Lollingite on Magnetite Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 175 x 119 x 65 mm |
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Fluorite with Scheelite and Lollingite on Magnetite Huanggangliang Fe mine, Kèshíkèténg Qí, Chifeng Prefecture, Inner Mongolia A.R., China 175 x 119 x 65 mm closeup of Scheelite and Fluorite |
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Joseph DOliveira
Joined: 29 Jan 2012
Posts: 294
Location: Hanmer, Ontario
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Posted: May 11, 2014 18:45 Post subject: Re: Bob's rocks |
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Wonderful Löllingite, particularly with the Fluorite and Scheelite associations. Is that a little Genthelvite hiding in a pocket in the upper left across from the main Fluorite and Scheelite crystals?
Love the zoom feature on the pictures, it gives a whole new aspect, especially when the photography is this good. Thanks for sharing.
_________________ Joseph D'Oliveira
Hanmer, Ontario
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 11, 2014 18:58 Post subject: Re: Bob's rocks |
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Thanks Joseph. The triangular-looking crystal is another Scheelite. Too bad it isn't a Helvite! The dealer I got this from didn't realize there were Scheelites present, so I got a much better deal. That's really why I bought it.
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Philip Mostmans
Joined: 08 Nov 2011
Posts: 43
Location: Mechelen
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Posted: May 12, 2014 03:36 Post subject: Re: Bob's rocks |
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Nice combination! Never seen the Fluo's from Huanggang with Scheelite before.
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 26, 2014 22:43 Post subject: Bob's rocks - Stibnite and Fluorite from Thailand |
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This cluster of Stibnite crystals to 36 mm long are nearly completely covered with cubes of translucent clear Fluorite to 5 mm with just a hint of purple color. This specimen came out in a one-time find which was brought to Tucson in the late 1980s. In excellent condition.
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Stibnite coated with Fluorite Bor Thong Mine, Prachin Buri Province, Thailand
82 x 56 x 38 mm |
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Stibnite coated with Fluorite Bor Thong Mine, Prachin Buri Province, Thailand
82 x 56 x 38 mm closeup |
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Don Lum
Joined: 03 Sep 2012
Posts: 2854
Location: Arkansas
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Posted: May 26, 2014 23:53 Post subject: Re: Bob's rocks |
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Unusual and attractive specimen, Bob.
Thanks.
Don
_________________ hogwild |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2029
Location: USA
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Posted: May 27, 2014 01:09 Post subject: Re: Bob's rocks |
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Very cool piece. It was nice to actually see it in person at the show.
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 27, 2014 08:03 Post subject: Bob's rocks - Topaz from Burma |
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Thanks Don & Mike, Next up...
Unlike most of the sherry-colored Topaz specimens from Mogok, which are single crystals, this one is perched on a matrix of Albite (v. Cleavlandite). The Topaz is very gemmy, equant crystal, and measures 79 x 39 x 34 mm. The top termination is crystallographically complex. The specimen is nearly pristine, with only one very small chip on the termination. A book of Muscovite is included at the top of the Topaz. It is a large and fine Topaz.
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Topaz on Albite (var. cleavelandite) Mogok Township, Pyin-Oo-Lwin District, Mandalay Division, Myanmar (Burma) 107 x 77 x 39 mm |
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GneissWare
Joined: 07 Mar 2008
Posts: 1287
Location: California
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Posted: May 27, 2014 21:07 Post subject: Bob's rocks - Quartz from Serifos, Greece |
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New Quartz...
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Quartz Mega Horio, Serifos Island, Cyclade Islands, Kyklades Prefecture, Greece 126 x 70 x 55 mm |
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20869 Time(s) |
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Quartz Mega Horio, Serifos Island, Cyclade Islands, Kyklades Prefecture, Greece 126 x 70 x 55 mm |
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20812 Time(s) |
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am mizunaka
Joined: 09 Apr 2010
Posts: 2029
Location: USA
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Posted: May 28, 2014 00:03 Post subject: Re: Bob's rocks |
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Great Greek quartz piece.
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Pierre Joubert
Joined: 09 Mar 2012
Posts: 1605
Location: Western Cape
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Posted: May 28, 2014 02:01 Post subject: Re: Bob's rocks |
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am mizunaka wrote: | Great Greek quartz piece. |
Indeed! Very interesting.
_________________ Pierre Joubert
'The tree of silence bears the fruit of peace. ' |
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